Merge pull request #1376 from spycrab/start_exterior_cell

Allow starting at an (unnamed) exterior cell using --start

apps/openmw/engine.cpp

@@ -278,8 +278,7 @@ void OMW::Engine::setResourceDir (const boost::filesystem::path& parResDir)
     mResDir = parResDir;
 }
 
-// Set start cell name (only interiors for now)
-
+// Set start cell name
 void OMW::Engine::setCell (const std::string& cellName)
 {
     mCellName = cellName;

apps/openmw/engine.hpp

@@ -148,7 +148,7 @@ namespace OMW
             /// Set resource dir
             void setResourceDir(const boost::filesystem::path& parResDir);
 
-            /// Set start cell name (only interiors for now)
+            /// Set start cell name
             void setCell(const std::string& cellName);
 
             /**

apps/openmw/mwworld/worldimp.cpp

@@ -2582,7 +2582,25 @@ namespace MWWorld
     {
         pos.rot[0] = pos.rot[1] = pos.rot[2] = 0;
 
-        if (const ESM::Cell *ext = getExterior(name)) {
+        const ESM::Cell *ext = getExterior(name);
+
+        if (!ext && name.find(',') != std::string::npos) {
+            try {
+                int x = std::stoi(name.substr(0, name.find(',')));
+                int y = std::stoi(name.substr(name.find(',')+1));
+                ext = getExterior(x, y)->getCell();
+            }
+            catch (std::invalid_argument)
+            {
+                // This exception can be ignored, as this means that name probably refers to a interior cell instead of comma separated coordinates
+            }
+            catch (std::out_of_range)
+            {
+                throw std::runtime_error("Cell coordinates out of range.");
+            }
+        }
+
+        if (ext) {
             int x = ext->getGridX();
             int y = ext->getGridY();
             indexToPosition(x, y, pos.pos[0], pos.pos[1], true);
@@ -2592,6 +2610,7 @@ namespace MWWorld
 
             return true;
         }
+
         return false;
     }